Unidentified foam near U.S. military bases in Okinawa raises PFAS concerns

Unidentified foam found near US military bases in Okinawa has raised concerns about PFAS (per- and polyfluoroalkyl substances) contamination. A civic group has requested on-site investigations of the US bases for possible chemical leaks, but the US military has declined the request. The incident highlights ongoing environmental and health concerns around US military installations in Japan.